| Screening for suitable varieties and identification indexes of drought resistance of upland rice in Huang-Huai wheat-rice planting region of Henan province |
|
View Fulltext View/Add Comment Download reader |
| |
| DOI：10.7606/j.issn.1000-7601.2013.01.30 |
| Key Words: Henan upland rice identification index cluster analysis |
| Author Name | Affiliation | | QIN Lizheng | Henan Agricultural University/Key Laboratory of Physiological Ecology and Genetic Improvement of Food Crops of
Henan Province/Key Laboratory of Crop Physiological Ecology and Farming System in Huang-Huai-Hai Region,
Ministry of Agriculture, Zhengzhou, Henan 450002, China | | LI Junzhou | Henan Agricultural University/Key Laboratory of Physiological Ecology and Genetic Improvement of Food Crops of
Henan Province/Key Laboratory of Crop Physiological Ecology and Farming System in Huang-Huai-Hai Region,
Ministry of Agriculture, Zhengzhou, Henan 450002, China | | DU Yanxiu | Henan Agricultural University/Key Laboratory of Physiological Ecology and Genetic Improvement of Food Crops of
Henan Province/Key Laboratory of Crop Physiological Ecology and Farming System in Huang-Huai-Hai Region,
Ministry of Agriculture, Zhengzhou, Henan 450002, China | | ZHANG Jing | Henan Agricultural University/Key Laboratory of Physiological Ecology and Genetic Improvement of Food Crops of
Henan Province/Key Laboratory of Crop Physiological Ecology and Farming System in Huang-Huai-Hai Region,
Ministry of Agriculture, Zhengzhou, Henan 450002, China | | SUN Hongzheng | Henan Agricultural University/Key Laboratory of Physiological Ecology and Genetic Improvement of Food Crops of
Henan Province/Key Laboratory of Crop Physiological Ecology and Farming System in Huang-Huai-Hai Region,
Ministry of Agriculture, Zhengzhou, Henan 450002, China | | HAN Yingchun | Henan Agricultural University/Key Laboratory of Physiological Ecology and Genetic Improvement of Food Crops of
Henan Province/Key Laboratory of Crop Physiological Ecology and Farming System in Huang-Huai-Hai Region,
Ministry of Agriculture, Zhengzhou, Henan 450002, China | | ZHAO Quanzhi | Henan Agricultural University/Key Laboratory of Physiological Ecology and Genetic Improvement of Food Crops of
Henan Province/Key Laboratory of Crop Physiological Ecology and Farming System in Huang-Huai-Hai Region,
Ministry of Agriculture, Zhengzhou, Henan 450002, China |
|
| Hits: 377 |
| Download times: 340 |
| Abstract: |
| The experiment was carried out to screen suitable
varieties and identify indexes of drought resistance of upland rice in Huang-Hu
ai wheat-rice planting region of Henan province, by using 23 rice varieties (in
cluding 21 upland varieties and 2 lowland varieties). The effects of soil drough
t stress on the yield per plant, plant morphology, physiological and biochemical
traits of different varieties were analyzed. The results indicated that the yie
ld per plant, tiller number, plant height, shoot fresh weight, and root base thi
ckness of high-yield varieties were 2.46, 1.78, 1.17, 1.57 and 1.18 times respe
ctively, compared to those of low-yield varieties under upland condition. Corre
lation analysis showed that the yield per plant was significantly correlated wit
h the tiller number, plant height, shoot fresh weight and root base thickness. T
he yield and tiller number under upland condition could be used as identificatio
n indexes for drought resistance of upland rice in Huang-Huai wheat-rice plant
ing region of Henan province. The plant height, shoot fresh weight and root base
thickness could be used as auxiliary indicators. Luodao 998, Xuhan 702, Yuan ha
ndao 3 and Zhenghan 2 were the four drought resistant and high yield varieties
and were suitable for extension. |
|
|
|